Die block



Oct. 22, 1929. H. n. FORSYTH 1,732,331

DIE BLOCK i Filed OCC. 4, 1927 Patented Oct. 22, 1929 vUNITI-:D STATES;

HAROLD D. FORSYTH, OF MARBLEHEAD, MASSACHUSETTS DIE BLOCK Application filed October 4, 1927. Serial No. 224,014.

This invention relates to die blocks such as are used on clicking machines for stamping out shoe uppers and the like, and the object is to provide a durable and inexpensive construction for such blocks which will permit them to be firmly secured in place and also one adapted for use on existing machines without change of the latter.

My invention will be well understood by reference to the following description taken in connection with the accompanying drawings of a single illustrative embodiment thereof, wherein:

Fig. 1 is a perspective View of a portion ofy a clicking machine of known type with a die block embodying the invention in position on the bed thereof;

Fig. 2 is a plan view of the die block with part broken away; and Fig. 3 is a fragmentary vertical section on a larger scale showing one of the securing means.

In Fig. 1 I have shown as an illustration of one type of machine on which the die blockr embodying my invention may be used a click ing machine having a reciprocating die-car rying head 5 adapted to stamp out work from leather or other sheet material which rests on the die block 7 supported on the bed 9 of the machine. To clamp the block securely in position it may be secured by the hooked end or bill 11 3) of a bolt 13 carried ad] acent one corner of the bed for securing one f end of the block and a similar bolt 13a located adjacent the opposite corner of the bed. The type of machine shown is supplied with these bolts and also with similarl bolts 15 along the front edge of the bed.

The die block 7, as best seen from Fig. 2, is

built up from suitable blocks of wood disposed with the end of the grain presented at the working faces of the block. For clearness the grain is indicated onlyat the broken away portion of Fig. 2. In the manufacture of such a block suitable pieces of wood are se-V lected and assembled to form one of the sections 17 of a length corresponding to the width or depth of the completed die block ,Y and a suitable number of such sections are ar- "O ranged side by side to provide the desired stanceone is disposed midway ofthe depthA or4 width of the block. and one adjacent each longitudinal edge. They are also located midway between the faces. In order to rovide at the end of the tie a hollow or tubular end with whichr thebill of al clamping hook may engage I may utilize for these ties a steel tube or pipe, as clearly shown in-Fig. 3, and the ends Iof thesetubes may be threaded to receive clamping nuts 21 cooperating with washers 23 to provide a firm clamping to:

gether of the sections of the block Iin the longitudinal. direction, viewing Fig. 2. The nut and washer is preferably recessed into the endof the block, as indicated in Fig. 3, suitable clearance being provided to provide .for 7 the application ofv a socket'wrench. The ends of the tubes being exposed at the ends of the blocks, the bills 11 4of clamping hooks 13, Orl?)a as the case maybe, may enter the same and thus not only is a clamping together of; f the sections provided for but an anchoring means forholding the block down upon the bed of the machine. To permit the utilization of the hook bolts 15 along the front edge of the bed thimbles 25 may be inserted in proper/- position along the longitudinal edges of the block and midway of its thickness.

In the construction of die block described the various sections of which it is made up are firmly tied and pressed together and the ties, consisting of the tube 19 and cooperating nuts 21, in themselves provide a simple and convenient means for receiving the bills of the clamping bolts. As the anchoring means with which these bolts engage are built into` the body of the block, there is no movement thereof relative to the block possible and an ample pressure may always be secured by means of these bolts firmly to clamp the block against the bed of the machine. It is obvious that this pressure acting on the tube is transmitted over a wide area of the block. The die block as shown may be turned upside down or end for end to equalize wear in the customary manner and may be resurfaced as usual. The arrangement and disposition of the ties 19 are such that there is no danger of their harming the resurfacing tools and any handling of the block is very simple since it is merely necessary to release the clamping bolts.

The inexpensive character of the construc-y tion shown is obvious.

Having described in detail the particular embodiment of my invention shown by way Vof example in the accompanyingl drawings,

what I claim as new and desire to secure by Letters Patent I shall express in detail in the following claims.

Claims:

1. A die block for clicking machines or the like comprising a plurality of sections, symmetrically arranged tubes extending` through said sections, clamping nuts threaded on the tubes, the ends of the tubes being exposed at the sides of the block to receive clamping hooks.

2. A. die block for clicking machines or the like comprising a plurality of sections, ties extending through the block and binding said sections together, said ties having tubular extremities exposed at the sides of the block to receive the bills oit' clamping hooks.

3. A'die block for clicking machines or the like comprising a plurality of sections, symmetrically arranged tubes extending through said sections, clamping nuts threaded on the tubes and recessed into the sides of the block, 1

the end of the tubes being exposed substantially flush with the ends of the block to receive the ends of clamping hooks.

In testimony whereof, I have signed myv name to this specification.

HAROLD D. FORSYTH. 

